return handler->devices[index];
}
+struct network *device_handler_get_network(
+ const struct device_handler *handler)
+{
+ return handler->network;
+}
+
struct discover_boot_option *discover_boot_option_create(
struct discover_context *ctx,
struct discover_device *device)
}
struct discover_device *discover_device_create(struct device_handler *handler,
- const char *id)
+ const char *uuid, const char *id)
{
struct discover_device *dev;
- dev = device_lookup_by_id(handler, id);
+ if (uuid)
+ dev = device_lookup_by_uuid(handler, uuid);
+ else
+ dev = device_lookup_by_id(handler, id);
+
if (dev)
return dev;
dev = talloc_zero(handler, struct discover_device);
dev->device = talloc_zero(dev, struct device);
dev->device->id = talloc_strdup(dev->device, id);
+ dev->uuid = talloc_strdup(dev, uuid);
list_init(&dev->params);
list_init(&dev->boot_options);
struct discover_boot_option *opt, *tmp;
unsigned int i;
+ list_for_each_entry_safe(&device->boot_options, opt, tmp, list) {
+ if (opt == handler->default_boot_option) {
+ pb_log("Default option %s cancelled since device removed",
+ opt->option->name);
+ device_handler_cancel_default(handler);
+ break;
+ }
+ }
+
for (i = 0; i < handler->n_devices; i++)
if (handler->devices[i] == device)
break;
talloc_free(device);
}
-static void boot_status(void *arg, struct boot_status *status)
+void device_handler_status(struct device_handler *handler,
+ struct status *status)
{
- struct device_handler *handler = arg;
-
discover_server_notify_boot_status(handler->server, status);
}
+static void _device_handler_vstatus(struct device_handler *handler,
+ enum status_type type, const char *fmt, va_list ap)
+{
+ struct status status;
+
+ status.type = type;
+ status.message = talloc_vasprintf(handler, fmt, ap);
+
+ device_handler_status(handler, &status);
+
+ talloc_free(status.message);
+}
+
+static void _device_handler_vdevstatus(struct device_handler *handler,
+ struct discover_device *device, enum status_type type,
+ const char *fmt, va_list ap)
+{
+ char *msg;
+
+ msg = talloc_asprintf(handler, "[%s] %s",
+ device ? device->device->id : "unknown", fmt);
+ _device_handler_vstatus(handler, type, msg, ap);
+ talloc_free(msg);
+}
+
+void device_handler_status_dev_info(struct device_handler *handler,
+ struct discover_device *dev, const char *fmt, ...)
+{
+ va_list ap;
+
+ va_start(ap, fmt);
+ _device_handler_vdevstatus(handler, dev, STATUS_INFO, fmt, ap);
+ va_end(ap);
+}
+
+void device_handler_status_dev_err(struct device_handler *handler,
+ struct discover_device *dev, const char *fmt, ...)
+{
+ va_list ap;
+
+ va_start(ap, fmt);
+ _device_handler_vdevstatus(handler, dev, STATUS_ERROR, fmt, ap);
+ va_end(ap);
+}
+
+void device_handler_status_info(struct device_handler *handler,
+ const char *fmt, ...)
+{
+ va_list ap;
+
+ va_start(ap, fmt);
+ _device_handler_vstatus(handler, STATUS_INFO, fmt, ap);
+ va_end(ap);
+}
+
+void device_handler_status_err(struct device_handler *handler,
+ const char *fmt, ...)
+{
+ va_list ap;
+
+ va_start(ap, fmt);
+ _device_handler_vstatus(handler, STATUS_ERROR, fmt, ap);
+ va_end(ap);
+}
+
+static void device_handler_boot_status_cb(void *arg, struct status *status)
+{
+ device_handler_status(arg, status);
+}
+
static void countdown_status(struct device_handler *handler,
struct discover_boot_option *opt, unsigned int sec)
{
- struct boot_status status;
+ struct status status;
- status.type = BOOT_STATUS_INFO;
- status.progress = -1;
- status.detail = NULL;
+ status.type = STATUS_INFO;
status.message = talloc_asprintf(handler,
_("Booting in %d sec: %s"), sec, opt->option->name);
- discover_server_notify_boot_status(handler->server, &status);
+ device_handler_status(handler, &status);
talloc_free(status.message);
}
pb_log("Timeout expired, booting default option %s\n", opt->option->id);
+ platform_pre_boot();
+
handler->pending_boot = boot(handler, handler->default_boot_option,
- NULL, handler->dry_run, boot_status, handler);
+ NULL, handler->dry_run, device_handler_boot_status_cb,
+ handler);
handler->pending_boot_is_default = true;
return 0;
}
return resource_is_resolved(opt->boot_image) &&
resource_is_resolved(opt->initrd) &&
resource_is_resolved(opt->dtb) &&
+ resource_is_resolved(opt->args_sig_file) &&
resource_is_resolved(opt->icon);
}
return resource_resolve(opt->boot_image, "boot_image", opt, handler) &&
resource_resolve(opt->initrd, "initrd", opt, handler) &&
resource_resolve(opt->dtb, "dtb", opt, handler) &&
+ resource_resolve(opt->args_sig_file, "args_sig_file", opt,
+ handler) &&
resource_resolve(opt->icon, "icon", opt, handler);
}
assert(!opt->option->dtb_file);
assert(!opt->option->icon_file);
assert(!opt->option->device_id);
+ assert(!opt->option->args_sig_file);
if (opt->boot_image)
opt->option->boot_image_file = opt->boot_image->url->full;
opt->option->dtb_file = opt->dtb->url->full;
if (opt->icon)
opt->option->icon_file = opt->icon->url->full;
+ if (opt->args_sig_file)
+ opt->option->args_sig_file = opt->args_sig_file->url->full;
opt->option->device_id = opt->device->device->id;
struct discover_context *ctx;
ctx = talloc_zero(handler, struct discover_context);
+ ctx->handler = handler;
ctx->device = device;
- ctx->network = handler->network;
list_init(&ctx->boot_options);
return ctx;
}
-/**
- * context_commit - Commit a temporary discovery context to the handler,
- * and notify the clients about any new options / devices
- */
-void device_handler_discover_context_commit(struct device_handler *handler,
- struct discover_context *ctx)
-{
- struct discover_device *dev = ctx->device;
- struct discover_boot_option *opt, *tmp;
-
- if (!device_lookup_by_id(handler, dev->device->id))
- device_handler_add_device(handler, dev);
-
- /* move boot options from the context to the device */
- list_for_each_entry_safe(&ctx->boot_options, opt, tmp, list) {
- list_remove(&opt->list);
-
- if (boot_option_resolve(opt, handler)) {
- pb_log("boot option %s is resolved, "
- "sending to clients\n",
- opt->option->id);
- list_add_tail(&dev->boot_options, &opt->list);
- talloc_steal(dev, opt);
- boot_option_finalise(handler, opt);
- notify_boot_option(handler, opt);
- } else {
- if (!opt->source->resolve_resource) {
- pb_log("parser %s gave us an unresolved "
- "resource (%s), but no way to "
- "resolve it\n",
- opt->source->name, opt->option->id);
- talloc_free(opt);
- } else {
- pb_log("boot option %s is unresolved, "
- "adding to queue\n",
- opt->option->id);
- list_add(&handler->unresolved_boot_options,
- &opt->list);
- talloc_steal(handler, opt);
- }
- }
- }
-}
-
void device_handler_add_device(struct device_handler *handler,
struct discover_device *device)
{
struct discover_device *dev)
{
struct discover_context *ctx;
- struct boot_status *status;
int rc;
- status = talloc_zero(handler, struct boot_status);
- status->type = BOOT_STATUS_INFO;
- status->message = talloc_asprintf(status, "Processing %s device %s",
- device_type_display_name(dev->device->type),
- dev->device->id);
- boot_status(handler, status);
+ device_handler_status_dev_info(handler, dev,
+ /*
+ * TRANSLATORS: this string will be passed the type of the
+ * device (eg "disk" or "network"), which will be translated
+ * accordingly.
+ */
+ _("Processing new %s device"),
+ device_type_display_name(dev->device->type));
process_boot_option_queue(handler);
device_handler_discover_context_commit(handler, ctx);
out:
- status->message = talloc_asprintf(status,"Processing %s complete\n",
- dev->device->id);
- boot_status(handler, status);
-
- talloc_free(status);
- talloc_free(ctx);
+ talloc_unlink(handler, ctx);
return 0;
}
struct discover_device *dev, struct event *event)
{
struct discover_context *ctx;
- struct boot_status *status;
- status = talloc_zero(handler, struct boot_status);
- status->type = BOOT_STATUS_INFO;
- status->message = talloc_asprintf(status, "Processing dhcp event on %s",
- dev->device->id);
- boot_status(handler, status);
+ device_handler_status_dev_info(handler, dev,
+ _("Processing DHCP lease response (ip: %s)"),
+ event_get_param(event, "ip"));
/* create our context */
ctx = device_handler_discover_context_create(handler, dev);
+ talloc_steal(ctx, event);
ctx->event = event;
iterate_parsers(ctx);
device_handler_discover_context_commit(handler, ctx);
- status->message = talloc_asprintf(status,"Processing %s complete\n",
- dev->device->id);
- boot_status(handler, status);
-
- talloc_free(status);
- talloc_free(ctx);
-
- return 0;
-}
-
-/* incoming conf event */
-int device_handler_conf(struct device_handler *handler,
- struct discover_device *dev, struct pb_url *url)
-{
- struct discover_context *ctx;
- struct boot_status *status;
-
- status = talloc_zero(handler, struct boot_status);
- status->type = BOOT_STATUS_INFO;
- status->message = talloc_asprintf(status, "Processing user config");
- boot_status(handler, status);
-
- /* create our context */
- ctx = device_handler_discover_context_create(handler, dev);
- ctx->conf_url = url;
-
- iterate_parsers(ctx);
-
- device_handler_discover_context_commit(handler, ctx);
-
- status->message = talloc_asprintf(status,
- "Processing user config complete");
- boot_status(handler, status);
-
- talloc_free(status);
- talloc_free(ctx);
+ talloc_unlink(handler, ctx);
return 0;
}
platform_pre_boot();
handler->pending_boot = boot(handler, opt, cmd, handler->dry_run,
- boot_status, handler);
+ device_handler_boot_status_cb, handler);
handler->pending_boot_is_default = false;
}
void device_handler_cancel_default(struct device_handler *handler)
{
- struct boot_status status;
-
if (handler->timeout_waiter)
waiter_remove(handler->timeout_waiter);
handler->default_boot_option = NULL;
- status.type = BOOT_STATUS_INFO;
- status.progress = -1;
- status.detail = NULL;
- status.message = _("Default boot cancelled");
-
- discover_server_notify_boot_status(handler->server, &status);
+ device_handler_status_info(handler, _("Default boot cancelled"));
}
void device_handler_update_config(struct device_handler *handler,
rc = process_run_sync(p);
- if (rc) {
+ if (rc || p->exit_status) {
/* ip has complained for some reason; most likely
* there is no route to the host - bail out */
- pb_debug("%s: No route to %s\n",__func__,url->host);
+ pb_debug("%s: `ip` returns non-zero exit status\n", __func__);
+ pb_debug("ip buf: %s\n", p->stdout_buf);
+ process_release(p);
return NULL;
}
return dev;
}
-
void device_handler_process_url(struct device_handler *handler,
- const char *url)
+ const char *url, const char *mac, const char *ip)
{
struct discover_context *ctx;
struct discover_device *dev;
- struct boot_status *status;
struct pb_url *pb_url;
struct event *event;
struct param *param;
- status = talloc(handler, struct boot_status);
-
- status->type = BOOT_STATUS_ERROR;
- status->progress = 0;
- status->detail = talloc_asprintf(status,
- _("Received config URL %s"), url);
-
if (!handler->network) {
- status->message = talloc_asprintf(handler,
- _("No network configured"));
- goto msg;
+ device_handler_status_err(handler, _("No network configured"));
+ return;
}
event = talloc(handler, struct event);
event->type = EVENT_TYPE_USER;
- event->action = EVENT_ACTION_CONF;
-
- event->params = talloc_array(event, struct param, 1);
- param = &event->params[0];
- param->name = talloc_strdup(event, "pxeconffile");
- param->value = talloc_strdup(event, url);
- event->n_params = 1;
+ event->action = EVENT_ACTION_URL;
+
+ if (url[strlen(url) - 1] == '/') {
+ event->params = talloc_array(event, struct param, 3);
+ param = &event->params[0];
+ param->name = talloc_strdup(event, "pxepathprefix");
+ param->value = talloc_strdup(event, url);
+ param = &event->params[1];
+ param->name = talloc_strdup(event, "mac");
+ param->value = talloc_strdup(event, mac);
+ param = &event->params[2];
+ param->name = talloc_strdup(event, "ip");
+ param->value = talloc_strdup(event, ip);
+ event->n_params = 3;
+ } else {
+ event->params = talloc_array(event, struct param, 1);
+ param = &event->params[0];
+ param->name = talloc_strdup(event, "pxeconffile");
+ param->value = talloc_strdup(event, url);
+ event->n_params = 1;
+ }
pb_url = pb_url_parse(event, event->params->value);
- if (!pb_url || !pb_url->host) {
- status->message = talloc_asprintf(handler,
- _("Invalid config URL!"));
- goto msg;
+ if (!pb_url || (pb_url->scheme != pb_url_file && !pb_url->host)) {
+ device_handler_status_err(handler, _("Invalid config URL!"));
+ return;
}
- event->device = device_from_addr(event, pb_url);
+ if (pb_url->scheme == pb_url_file)
+ event->device = talloc_asprintf(event, "local");
+ else
+ event->device = device_from_addr(event, pb_url);
+
if (!event->device) {
- status->message = talloc_asprintf(status,
+ device_handler_status_err(handler,
_("Unable to route to host %s"),
pb_url->host);
- goto msg;
+ return;
}
- dev = discover_device_create(handler, event->device);
+ dev = discover_device_create(handler, mac, event->device);
+ if (pb_url->scheme == pb_url_file)
+ dev->device->type = DEVICE_TYPE_ANY;
ctx = device_handler_discover_context_create(handler, dev);
+ talloc_steal(ctx, event);
ctx->event = event;
iterate_parsers(ctx);
device_handler_discover_context_commit(handler, ctx);
- talloc_free(ctx);
-
- status->type = BOOT_STATUS_INFO;
- status->message = talloc_asprintf(status, _("Config file %s parsed"),
- pb_url->file);
-msg:
- boot_status(handler, status);
- talloc_free(status);
+ talloc_unlink(handler, ctx);
}
#ifndef PETITBOOT_TEST
+/**
+ * context_commit - Commit a temporary discovery context to the handler,
+ * and notify the clients about any new options / devices
+ */
+void device_handler_discover_context_commit(struct device_handler *handler,
+ struct discover_context *ctx)
+{
+ struct discover_device *dev = ctx->device;
+ struct discover_boot_option *opt, *tmp;
+
+ if (!device_lookup_by_uuid(handler, dev->uuid))
+ device_handler_add_device(handler, dev);
+
+ /* move boot options from the context to the device */
+ list_for_each_entry_safe(&ctx->boot_options, opt, tmp, list) {
+ list_remove(&opt->list);
+
+ /* All boot options need at least a kernel image */
+ if (!opt->boot_image || !opt->boot_image->url) {
+ pb_log("boot option %s is missing boot image, ignoring\n",
+ opt->option->id);
+ talloc_free(opt);
+ continue;
+ }
+
+ if (boot_option_resolve(opt, handler)) {
+ pb_log("boot option %s is resolved, "
+ "sending to clients\n",
+ opt->option->id);
+ list_add_tail(&dev->boot_options, &opt->list);
+ talloc_steal(dev, opt);
+ boot_option_finalise(handler, opt);
+ notify_boot_option(handler, opt);
+ } else {
+ if (!opt->source->resolve_resource) {
+ pb_log("parser %s gave us an unresolved "
+ "resource (%s), but no way to "
+ "resolve it\n",
+ opt->source->name, opt->option->id);
+ talloc_free(opt);
+ } else {
+ pb_log("boot option %s is unresolved, "
+ "adding to queue\n",
+ opt->option->id);
+ list_add(&handler->unresolved_boot_options,
+ &opt->list);
+ talloc_steal(handler, opt);
+ }
+ }
+ }
+}
+
static void device_handler_update_lang(const char *lang)
{
const char *cur_lang;
handler->dry_run);
}
-static const char *fs_parameters(struct discover_device *dev,
- unsigned int rw_flags)
+static inline const char *get_device_path(struct discover_device *dev)
{
- const char *fstype = discover_device_get_param(dev, "ID_FS_TYPE");
-
- /* XFS journals are not cross-endian compatible; don't try recovery
- * even if we have a snapshot */
- if (!strncmp(fstype, "xfs", strlen("xfs")))
- return "norecovery";
+ return dev->ramdisk ? dev->ramdisk->snapshot : dev->device_path;
+}
- /* If we have a snapshot available allow touching the filesystem */
- if (dev->ramdisk)
- return "";
+static char *check_subvols(struct discover_device *dev)
+{
+ const char *fstype = discover_device_get_param(dev, "ID_FS_TYPE");
+ struct stat sb;
+ char *path;
+ int rc;
- if ((rw_flags | MS_RDONLY) != MS_RDONLY)
- return "";
+ if (strncmp(fstype, "btrfs", strlen("btrfs")))
+ return dev->mount_path;
- /* Avoid writes due to journal replay if we don't have a snapshot */
- if (!strncmp(fstype, "ext4", strlen("ext4")))
- return "norecovery";
+ /* On btrfs a device's root may be under a subvolume path */
+ path = join_paths(dev, dev->mount_path, "@");
+ rc = stat(path, &sb);
+ if (!rc && S_ISDIR(sb.st_mode)) {
+ pb_debug("Using '%s' for btrfs root path\n", path);
+ return path;
+ }
- return "";
-}
-
-static inline const char *get_device_path(struct discover_device *dev)
-{
- return dev->ramdisk ? dev->ramdisk->snapshot : dev->device_path;
+ talloc_free(path);
+ return dev->mount_path;
}
static bool check_existing_mount(struct discover_device *dev)
if (mntstat.st_rdev == devstat.st_rdev) {
dev->mount_path = talloc_strdup(dev, mnt->mnt_dir);
+ dev->root_path = check_subvols(dev);
dev->mounted_rw = !!hasmntopt(mnt, "rw");
dev->mounted = true;
dev->unmount = false;
return mnt != NULL;
}
+/*
+ * Attempt to mount a filesystem safely, while handling certain filesytem-
+ * specific options
+ */
+static int try_mount(const char *device_path, const char *mount_path,
+ const char *fstype, unsigned long flags,
+ bool have_snapshot)
+{
+ const char *fs, *safe_opts;
+ int rc;
+
+ /* Mount ext3 as ext4 instead so 'norecovery' can be used */
+ if (strncmp(fstype, "ext3", strlen("ext3")) == 0) {
+ pb_debug("Mounting ext3 filesystem as ext4\n");
+ fs = "ext4";
+ } else
+ fs = fstype;
+
+ if (strncmp(fs, "xfs", strlen("xfs")) == 0 ||
+ strncmp(fs, "ext4", strlen("ext4")) == 0)
+ safe_opts = "norecovery";
+ else
+ safe_opts = NULL;
+
+ errno = 0;
+ /* If no snapshot is available don't attempt recovery */
+ if (!have_snapshot)
+ return mount(device_path, mount_path, fs, flags, safe_opts);
+
+ rc = mount(device_path, mount_path, fs, flags, NULL);
+
+ if (!rc)
+ return rc;
+
+ /* Mounting failed; some filesystems will fail to mount if a recovery
+ * journal exists (eg. cross-endian XFS), so try again with norecovery
+ * where that option is available.
+ * If mounting read-write just return the error as norecovery is not a
+ * valid option */
+ if ((flags & MS_RDONLY) != MS_RDONLY || !safe_opts)
+ return rc;
+
+ errno = 0;
+ return mount(device_path, mount_path, fs, flags, safe_opts);
+}
+
static int mount_device(struct discover_device *dev)
{
const char *fstype, *device_path;
if (!fstype)
return 0;
- /* ext3 treats the norecovery option as an error, so mount the device
- * as an ext4 filesystem instead */
- if (!strncmp(fstype, "ext3", strlen("ext3"))) {
- pb_debug("Mounting ext3 filesystem as ext4\n");
- fstype = talloc_asprintf(dev, "ext4");
- }
-
dev->mount_path = join_paths(dev, mount_base(),
dev->device_path);
device_path = get_device_path(dev);
pb_log("mounting device %s read-only\n", dev->device_path);
- errno = 0;
- rc = mount(device_path, dev->mount_path, fstype,
- MS_RDONLY | MS_SILENT,
- fs_parameters(dev, MS_RDONLY));
+ rc = try_mount(device_path, dev->mount_path, fstype,
+ MS_RDONLY | MS_SILENT, dev->ramdisk);
+
if (!rc) {
dev->mounted = true;
dev->mounted_rw = false;
dev->unmount = true;
+ dev->root_path = check_subvols(dev);
return 0;
}
talloc_free(dev->mount_path);
dev->mount_path = NULL;
+ dev->root_path = NULL;
return 0;
}
return -1;
}
- rc = mount(device_path, dev->mount_path, fstype,
- MS_SILENT,
- fs_parameters(dev, MS_REMOUNT));
+ rc = try_mount(device_path, dev->mount_path, fstype,
+ MS_SILENT, dev->ramdisk);
if (rc)
goto mount_ro;
mount_ro:
pb_log("Unable to remount device %s read-write: %s\n",
device_path, strerror(errno));
- if (mount(device_path, dev->mount_path, fstype,
- MS_RDONLY | MS_SILENT,
- fs_parameters(dev, MS_RDONLY)))
+ rc = try_mount(device_path, dev->mount_path, fstype,
+ MS_RDONLY | MS_SILENT, dev->ramdisk);
+ if (rc)
pb_log("Unable to recover mount for %s: %s\n",
device_path, strerror(errno));
return -1;
void device_release_write(struct discover_device *dev, bool release)
{
const char *fstype, *device_path;
- int rc = 0;
if (!release)
return;
device_path = get_device_path(dev);
}
- mount(device_path, dev->mount_path, fstype,
- MS_RDONLY | MS_SILENT,
- fs_parameters(dev, MS_RDONLY));
- if (rc)
+ if (try_mount(device_path, dev->mount_path, fstype,
+ MS_RDONLY | MS_SILENT, dev->ramdisk))
pb_log("Failed to remount %s read-only: %s\n",
device_path, strerror(errno));
else
dev->mounted = true;
}
+void device_sync_snapshots(struct device_handler *handler, const char *device)
+{
+ struct discover_device *dev = NULL;
+ unsigned int i;
+
+ if (device) {
+ /* Find matching device and sync */
+ dev = device_lookup_by_name(handler, device);
+ if (!dev) {
+ pb_log("%s: device name '%s' unrecognised\n",
+ __func__, device);
+ return;
+ }
+ if (dev->ramdisk)
+ device_release_write(dev, true);
+ else
+ pb_log("%s has no snapshot to merge, skipping\n",
+ dev->device->id);
+ return;
+ }
+
+ /* Otherwise sync all relevant devices */
+ for (i = 0; i < handler->n_devices; i++) {
+ dev = handler->devices[i];
+ if (dev->device->type != DEVICE_TYPE_DISK &&
+ dev->device->type != DEVICE_TYPE_USB)
+ continue;
+ if (dev->ramdisk)
+ device_release_write(dev, true);
+ else
+ pb_log("%s has no snapshot to merge, skipping\n",
+ dev->device->id);
+ }
+}
+
#else
+void device_handler_discover_context_commit(
+ struct device_handler *handler __attribute__((unused)),
+ struct discover_context *ctx __attribute__((unused)))
+{
+ pb_log("%s stubbed out for test cases\n", __func__);
+}
+
static void device_handler_update_lang(const char *lang __attribute__((unused)))
{
}
{
}
-#endif
+void device_sync_snapshots(
+ struct device_handler *handler __attribute__((unused)),
+ const char *device __attribute__((unused)))
+{
+}
+#endif
projects / petitboot / blobdiff